CAF方案新辅助化疗对乳腺癌组织BCSG1蛋白表达的影响(英文)

目的探讨CAF联合化疗方案的新辅助化疗对乳腺癌组织BCSG1蛋白表达的影响。方法采用免疫组化SP法分别检测34例行CAF联合方案新辅助化疗患者(新辅助化疗组)和同期110例未行新辅助化疗患者(对照组)手术切除的乳腺癌组织BCSG1蛋白表达。同时对新辅助化疗组疗效进行病理形态学评价,并分析BCSG1蛋白表达与病理形态学变化的关系。结果新辅助化疗组化疗总有效率为79．4％。新辅助化疗组BCSG1蛋白高表达率明显低于对照组(29．4％比64．5％,P<0．01),化疗后部分缓解(Ⅱ级)病例BCSG1蛋白高表达水平明显低于无效(Ⅲ级)病病(P=0．002)。结论采用CAF方案新辅助化疗近期疗效明显,可抑制乳腺癌BCSG1蛋白的表达。     

CAF方案新辅助化疗对乳腺癌组织BCSG1蛋白表达的影响

目的:探讨CAF联合化疗方案的新辅助化疗对乳腺癌组织BCSG1蛋白表达的影响.方法:采用免疫组化SP法分别检测34例行CAF联合方案新辅助化疗患者(新辅助化疗组)和同期110例未行新辅助化疗惠者(对照组)手术切除的乳腺癌组织BCSG1蛋白的表达.同时对新辅助化疗组疗效进行病理形态学评价,并分析BCSG1蛋白表达与病理形态学变化的关系.结果:新辅助化疗组化疗总有效率为79.4%.新辅助化疗组BCSG1蛋白高表达率明显低于对照组(29.4%比64.5%,P＜0.01),化疗后部分缓解(Ⅱ级)病例BCSG1蛋白高表达水平明显低于无效(Ⅲ级)病例(P=0.002).结论:采用CAF方案新辅助化疗近期疗效明显,可抑制乳腺癌BCSG1蛋白的表达.     

三阴乳腺癌新辅助化疗前后BCSG1基因表达的分析

目的观察乳腺癌特异基因BCSG1在三阴乳腺癌新辅助化疗前后分子和蛋白水平的变化。方法采用免疫组化SP法和荧光定量PCR方法检测49例三阴乳腺癌患者新辅助化疗(TA方案)前后乳腺癌组织BCSG1的表达情况,比较化疗前后肿瘤体积的变化,分析新辅助化疗前后BCSG1蛋白表达与肿瘤大小的关系。结果 43例乳腺癌患者新辅助化疗后肿瘤体积均有明显缩小,病灶缓解率(CR+PR)为87.8%;新辅助化疗后BCSG1mRNA表达水平亦明显低于化疗前蛋白表达(P0.05)。新辅助化疗后BCSG1蛋白表达率低于新辅助化疗前蛋白表达(P0.01)。结论 BCSG1分子和蛋白水平在三阴乳腺癌新辅助化疗后均明显降低,与新辅助化疗后疗效呈负相关(r=0.704,P=0.000),提示BCSG1可作为三阴乳腺癌新辅助化疗疗效的预测因子。     

Predictive value of BRCA1/2 mRNA expression for response to neoadjuvant chemotherapy in BRCA‐negative breast cancers

It is well known that BRCA1 and BRCA2 play a central role in DNA repair, but the relationship between BRCA1 and BRCA2 mRNA expression and response to neoadjuvant chemotherapy in sporadic breast cancer patients has not been well established. Here, we investigate the association between BRCA1 or BRCA2 mRNA expression levels and pathological response in 674 BRCA1/2 mutation‐negative breast cancer patients who received neoadjuvant chemotherapy. BRCA1 and BRCA2 mRNA expression were assessed using quantitative real‐time polymerase chain reaction in core biopsy breast cancer tissue obtained prior to the initiation of neoadjuvant chemotherapy. A total 129 patients (19.1%) achieved pathological complete response (pCR) after neoadjuvant chemotherapy. Among patients treated with anthracycline‐based chemotherapy (n = 531), BRCA1 mRNA low expression patients had a significantly higher pCR rate than intermediate or high BRCA1 mRNA expression groups (24.6% vs 16.8% or 14.0%, P = .031) and retained borderline significance (OR = 1.54, 95% CI = 0.93‐2.56, P = .094) in multivariate analysis. Among the 129 patients who received a taxane‐based regimen, pCR rate showed no differences in BRCA1 low, intermediate, and high mRNA level subgroups (19.6%, 26.8% and 21.4%, respectively; P = .71). BRCA2 mRNA level was not associated with pCR rate in the anthracyline‐based treated subgroup (P = .60) or the taxane‐based regimen subgroup (P = .82). Taken together, our findings suggested that BRCA1 mRNA expression could be used as a predictive marker in BRCA1/2 mutation‐negative breast cancer patients who received neoadjuvant anthracycline‐based treatment.     

局部晚期乳腺癌新辅助化疗临床疗效及病理反应与预后的关系

目的探讨局部晚期乳腺癌新辅助化疗后,临床体征与病理改变相关性及对预后的影响。方法1999年6月至2003年6月,对46例局部晚期乳腺癌患者以针吸细胞学明确乳腺癌诊断后行新辅助化疗CAF或CEF方案2周期,化疗前、后观察肿瘤大小及术后病理表现,术后对患者进行随访。结果原发灶临床有效率为45.7%,完全缓解(CR)2.2%,部分缓解(PR)43.5%,病理有效率为54.4%,重度组织反应17.4%,中度组织反应37.0%,术后中位随访期36个月,健康生存26例,余20例中,其中有2例患者失访,18例中死亡10例,复发8例。结论新辅助化疗后,认为病理有效的患者的无瘤生存率高于临床有效的患者、生存时间长于临床有效的患者,病理有效才能影响患者的预后。     

Kinetics of serum HER-2/neu changes in patients with HER-2-positive primary breast cancer after initiation of primary chemotherapy

BACKGROUND: The purpose of the study was to determine the utility of quantitation of the extracellular domain (ECD) of the HER-2/neu receptor in the serum for predicting response to treatment in patients with primary breast cancer receiving neoadjuvant therapy. METHODS: HER-2/neu ECD was measured in sera obtained from 39 patients with HER-2-amplified stage II-III primary breast cancer undergoing neoadjuvant chemotherapy. Patients were randomly assigned to either 4 cycles of paclitaxel followed by 4 cycles of fluorouracil, epirubicin, and cyclophosphamide (FEC) (n = 10) or to the same chemotherapy with simultaneous weekly trastuzumab for 24 weeks (n = 29). Changes in HER-2 ECD were monitored with the Bayer HER-2/neu assay over 6 months and correlated with pathological response to treatment. RESULTS: Before initiation of chemotherapy, 28.2% of patients had elevated concentration of the HER-2 ECD (>15 ng/mL). The median baseline serum HER-2 ECD concentration was 13.6 ng/mL (mean +/- SD, 20.3 +/- 35.5 ng/mL). A decrease in the median HER-2 ECD levels from baseline to Week 3 and from baseline to Week 6 of chemotherapy was seen regardless of treatment regimen. No significant difference in baseline HER-2 ECD levels was observed between the groups who achieved pathological complete response (pCR) and the group with residual disease (P = .41). However, a 9% drop from Week 3 to Week 6 after initial chemotherapy was predictive of pCR (P = .04). CONCLUSION: A decrease in serum HER-2 ECD levels early during treatment was associated with pathological response in patients receiving primary chemotherapy, particularly trastuzumab-based regimens. Serum HER-2 ECD levels may serve to monitor neoadjuvant therapy in HER-2-positive primary breast cancer.     

BCRP和Ki-67与乳腺癌新辅助化疗疗效的关系

目的:探讨乳腺癌组织中乳腺癌耐药蛋白(breast cancer resistance protein,BCRP)和Ki-67的表达与新辅助化疗疗效之间的关系.方法:回顾性分析我科2012 年10月至2014年8 月收治的Ⅱ-Ⅲ期乳腺癌新辅助化疗患者65例,采用免疫组化方法检测BCRP和Ki-67的表达,分析BCRP、Ki-67的表达水平与新辅助化疗疗效的关系.结果:原发性乳腺癌组织中BCRP的阳性表达率为67.7%.BCRP的表达水平与新辅助化疗后病理组织学反应有关,组织学显著反应组(病理反应4~5级)BCRP的表达水平明显低于非显著反应组(病理反应1~3级),差异有统计学意义(x2=12.77,P=0.001).化疗前Ki-67高表达组临床缓解率明显高于低表达组(x2=17.72,P<0.00). 结论: 联合检测乳腺癌组织中BCRP和Ki-67 的表达水平对新辅助化疗疗效有一定的预测价值.     

乳腺癌组织中BCRP的表达与新辅助化疗疗效的关系

目的 探讨原发性乳腺癌组织中乳腺癌耐药蛋白（breast cancer resistance protein,BCRP）的表达与新辅助化疗疗效的相关性。方法 采用免疫组织化学MaxVisionTM一步法检测84例原发性乳腺癌组织中BCRP的表达,结合新辅助化疗后临床疗效及术后病理组织学Miller&Payne（MP）分级,分析BCRP的表达与新辅助化疗疗效及相关病理指标的相互关系。结果 （1）原发性乳腺癌组织中BCRP的阳性表达率为71.43%。（2）BCRP的表达水平与新辅助化疗临床疗效有关,新辅助化疗后获得cCR组患者BCRP表达水平明显低于SD+PD组和cPR组,三组间BCRP表达水平的差异有统计学意义（χ2=9.779,P=0.008）。（3）BCRP的表达水平与新辅助化疗后组织学反应有关,组织学显著反应组（病理反应4~5级）BCRP的表达水平明显低于组织学非显著反应组（病理反应1~3级）,差异有统计学意义（χ2=8.649,P=0.003）。（4）BCRP的表达水平与新辅助化疗后残余阳性腋窝淋巴结的个数正相关（r =0.518,P=0.000）。结论 BCRP在原发性乳腺癌组织中有一定程度的表达,BCRP的表达水平可以预测新辅助化疗的临床疗效及组织学反应,BCRP的表达水平与新辅助化疗后残余阳性腋窝淋巴结的个数正相关,BCRP可以作为判断患者化疗效果及预后指标之一。     

Localization of PKCη in Cell Membranes as a Predictor for Breast Cancer Response to Treatment

Background: Successful treatment of breast cancer is frequently limited by the resistance of tumors to chemotherapy. Recent studies suggested a role for protein kinase C (PKC) in the resistance to chemotherapy. Here we used retrospective analysis of breast cancer biopsies of neoadjuvantly treated patients to investigate the correlation of PKC expression with aggressiveness and resistance to chemotherapy. Patients and Methods: Our cohort (n = 25) included patients with advanced and aggressive breast cancers, who underwent neoadjuvant therapy with the CAF regimen (cyclophosphamide, doxorubicin, fluorouracil). Core biopsies (pre-chemotherapy) and surgical biopsies of primary tumors and lymph node metastases (post-chemotherapy) were scored for PKCeta (PKCh) and PKCepsilon (PKCe) expression in the cytoplasm, cell membrane, nuclear membrane, and the nucleus. Results: Our results showed increased expression of PKCh (not PKCe) in the cytoplasm and cell membranes of post-chemotherapy biopsies (p = 0.03). PKCh presence in cell membranes, indicating activation, was in correlation with poor survival (p = 0.007). Conclusion: PKCh staining in cell and nuclear membranes is an indicator for poor survival and a predictor for the effectiveness of neoadjuvant treatment. Other avenues of treatment should be considered for these patients. PKCh presents a target for therapy where inhibition of its activity and/or translocation to membranes could interfere with the resistance to chemotherapy.     

不同化疗方案对裸鼠MCF-7乳腺癌移植瘤PCNA和Bcl-2表达的影响

目的：研究不同化疗方案对乳腺癌组织PCNA和Bcl-2的影响,探讨二者与化疗的关系及评价疗效的价值。方法：制备MCF-7乳腺癌荷瘤裸鼠模型,化疗后观察移植瘤病理组织学疗效,用免疫组化SP法显示乳腺癌组织PCNA和Bcl-2表达情况。结果：（1）各化疗组瘤组织PCNA表达显著低于对照组（P〈0．05）,且NP、TP和Xeloda组显著低于CMF、CAF组（P〈0．05）。PCNA表达与病理疗效显著相关（P=0．001）。（2）CAF、NP、TP和Xeloda化疗组Bcl-2蛋白表达显著高于对照组（P〈0．05）,且TP组显著高于CMF、CAF组（P〈0．05）。Bcl-2表达与病理疗效无显著相关性（P=0．093）。结论：化疗可降低乳腺癌组织PCNA表达,并增强Bcl-2的表达,且不同化疗方案对二者影响的差异有显著性。PCNA可作为评价乳腺癌化疗效果的参考指标,对选择化疗方案可能有指导意义。     

原发性乳腺癌新辅助化疗的临床研究

目的　探讨以 5 氟脲嘧啶 (5 Fu)和蒽环类药物为主的联合化疗对原发性乳腺癌新辅助化疗的应用价值。方法　 111例患者的 114个原发性乳腺癌 ,于手术前应用 5 Fu和蒽环类药物 (吡柔比星或表柔比星 )为主的联合化疗 2～ 6个周期 ,观察其疗效和毒副反应 ,并分析疗效与肿瘤特征的关系。结果　全组总有效率为 87.7% ,其中临床完全缓解率为 39.5 % ,病理学完全缓解率为 2 3.7% ,疾病进展率为 0 .9%。吡柔比星方案较表柔比星方案疗效更佳 ,两方案病理学完全缓解者差异有显著性 (P <0 .0 5 )。吡柔比星方案的脱发反应轻微 ,但骨髓抑制较表柔比星方案严重。肿瘤激素受体表达与疗效有关 ,激素受体表达阴性者病理学完全缓解率为 33.3% ,而激素受体表达阳性者仅为 7.5 %(P <0 .0 0 5 )。肿瘤大小和HER 2表达与疗效无关。结论　 5 Fu和蒽环类药物为主的联合方案用于乳腺癌新辅助化疗 ,近期疗效满意 ,且副反应较轻。吡柔比星方案的疗效优于表柔比星方案 ,激素受体表达阴性者对化疗更敏感     

不同化疗方案对MCF-7乳腺癌荷瘤裸鼠的抑瘤作用及对PCNA表达的影响

Objective: To investigate the antitumor activity of different combination regimens to human breast cancer xenograft (MCF-7) transplanted in nude mice and the effects on the expression of PCNA, and to evaluate the value of PCNA as predictive factor for the response of chemotherapy and individualized treatment. Methods: (1) 88 nude mice models of human breast cancer xenograft (MCF-7) were established, and then were randomly divided into control group and 10 chemotherapy groups (each group, n = 8). Among them, the mice of 5 chemotherapy groups were treated intraperitoneally/orally by 5 combination chemotherapy regimens (CMF, CAF, NP, TP, Xeloda) respectively at 1/3 LD10 dosage schedule (dose lethal to 10%of the mice), and that in another 5 chemotherapy groups were treated at 2/3 LD10 dosage schedule. Control animals were administered intraperitoneally with normal saline. (2) The body weight of nude mice and transplanted tumor growth were observed and recorded, then inhibition rate of tumor growth was calculated. (3) The pathological features of transplanted tumor were studied under microscope. The expression of proliferating cell nuclear antigen (PCNA) was comparatively studied in chemotherapy group and control group by SP immunohistochemical method and flow cytometry analysis. Results: (1) Body weight, tumor weight and inhibition rate of tumor growth of athymic mice bearing cancer: Body weights and tumor weights of nude mice in every 2/3 LD10 chemotherapy group were significantly lower than those of the control group (P ＜ 0.05), and the inhibition rates of tumor growth were 83.1%, 75.5%, 84.6%, 87.9% and 91.0%, respectively. Body weights of athymic mice in every 1/3 LD10 chemotherapy group were lower than that of the control (P ＜ 0.05). The results showed that the 2/3 LD10chemotherapy groups could reflect the effect of combination chemotherapy on the nude mice and the clinical dependability was better. So the data of 2/3 LD10 chemotherapy groups were appropriated for successive study. (2) Immunohistochemical studies: The expressions of PCNA in every chemotherapy group were significantly lower than that of the control (P ＜ 0.05).Moreover, the expression of PCNA in NP group was significantly lower than those of CMF, CAF, TP and Xeloda groups (P ＜0.05), while the expressions of TP and Xeloda groups were significantly lower than those of CMF and CAF groups (P ＜ 0.05).(3) FCM analysis: FI values of PCNA in every chemotherapy group were significantly lower than that of the control (P ＜ 0.05).FI values of PCNA in TP and Xeloda groups were significantly lower than those of CMF and CAF groups (P ＜ 0.05), while the value of NP group was significantly lower than that of CMF group (P ＜ 0.05). (4) Relationship between PCNA expression and pathologic response: The expression of PCNA was significantly correlated with pathological therapeutic response of transplanted breast carcinoma (P = 0.001). Conclusion: In vivo chemosensitivity testing with 2/3 LD10 dosage combinations in nude mice bearing cancer can reflect the effects of chemotherapeutics and affects of organism exactly. Various chemotherapy regimens all can decrease the expression of PCNA in breast cancer. The PCNA can be regarded as the factor to judge the response to chemotherapy, and it become possibly one of the prospective factors in the selection of chemotherapy regimen and play a rule in individualized therapy in the clinic.     

乳腺癌新辅助化疗86例临床观察

目的：观察乳腺癌新辅助化疗的临床效果，并探讨其临床价值。方法：2004年6月-2007年2月收治乳腺癌患者86例，予以新辅助化疗（rIThpC方案），即：多西紫杉醇（艾素）100mg，d1；吡柔比星60mg，d1；环磷酰胺0．8g，d1。21d为1周期，2—5个周期后观察客观有效率、病理缓解率及新辅助化疗前后免疫组化指标的变化。结果：新辅助化疗后临床完全缓解（cCR）者19例，占22．09％，部分缓解（cPR）者51例，占59．30％，病情稳定（SD）者16例，占18．60％，无疾病进展（PD）患者；病理学完全缓解（pCR）者7例，占8．14％。21例患者新辅助化疗后的ER、PR、C-erbB-2的阳性表达率均低于新辅助化疗前，但未达到统计学差异（P〉0．05）。结论：乳腺癌新辅助化疗可以有效的缩小肿瘤，降低肿瘤分期，提高行改良根治术及保乳术几率，逆转可能存在的全身转移，为化疗方案提供药敏依据；新辅助化疗可使乳腺癌患者ER、PR、C-erbB-2的阳性表达降低，临床应根据术前免疫组化结果制定相关术后辅助治疗方案，才可能使患者有更大的获益。     

异长春花碱联合顺铂治疗乳腺癌肺转移瘤

目的 :观察化疗药物异长春花碱联合顺铂对晚期乳腺癌肺转移瘤治疗效果。方法 :用常规剂量长春花碱联合顺铂 (NP)与环磷酰胺加阿霉素加 5 氟尿嘧啶联合 (CAF)的两种化疗方案分别治疗 2 8例和 32例晚期乳腺癌肺转移瘤 ,按WHO标准评价疗效进行分析对比。结果 :在NP方案中 ,化疗总有效率为 4 6 4 % ,比CAF方案的 2 8 1%有效率显著为高 ,能明显改善病人的呼吸系统症状 ,且比CAF方案能显著延长病人的生存期 ,但造血系统抑制比CAF方案严重。结论 :诺维本联合顺铂治疗晚期乳腺癌肺转移瘤具有较好的远近期效果 ,但需注意其易出现骨髓抑制和发生静脉炎的毒付作用。     

乳腺癌患者新辅助化疗后病理完全缓解的相关影响因素分析及列线图预测模型的构建

目的:建立关于乳腺癌新辅助化疗后病理完全缓解的综合预测模型,预测新辅助化疗后病理缓解,指导临床上诊疗方案的选择。方法:回顾分析2015年1月至2020年3月148例乳腺癌新辅助化疗患者的临床资料、化疗前核磁共振资料及病理资料,根据术后病理分为pCR组与npCR组。采用χ2检验对两组指标先行单因素分析;将P＜0.05的指标及考虑可能有临床意义的指标纳入多因素Logistic回归分析。应用多因素分析考虑有统计学意义(P＜0.05)及临床意义的指标构建乳腺癌新辅助化疗后病理缓解综合预测模型的列线图,并运用ROC曲线评价此模型的效能。结果:单因素分析表明腺体背景强化类型、最长径、病理分型对乳腺癌是否达到病理完全缓解具有预测作用;多因素分析表明,腺体背景强化类型、最长径、病理分型均是新辅助化疗后病理完全缓解的独立预测因素(P＜0.05)。乳腺癌新辅助化疗后病理缓解的预测模型的曲线下面积为0.769,特异度为65.5%,敏感度为78.9%。结论:乳腺癌新辅助化疗后病理完全缓解的综合预测模型对病理缓解状态有较好的预测能力,此模型可为乳腺癌新辅助化疗后患者选择手术方式提供参考。     

生存素乳腺癌耐药蛋白和人表皮生长因子受体2基因的表达与乳腺癌新辅助化疗疗效的关系

目的 探讨生存素(Survivin)、乳腺癌耐药蛋白(BCRP)以及人表皮生长因子受体2(HER-2)基因表达对乳腺癌TE方案新辅助化疗疗效的预测价值.方法 对56例乳腺癌患者行TE方案新辅助化疗,应用RT-PCR法检测TE方案化疗前后Survivin、BCRP和HER-2 mRNA的表达差异,并结合化疗疗效进行相关性分析.结果 56例乳腺癌患者经TE方案新辅助化疗后的总有效率为71.4％.全组完全缓解5例,病理完全缓解4例,部分缓解35例,稳定13例,进展3例.Survivin mRNA的阳性表达率由化疗前的60.7％降至化疗后的35.7％ (P =0.008);BCRP mRNA的阳性表达率由化疗前的37.5％降至化疗后的19.6％(P=0.036);HER-2 mRNA的阳性表达率由化疗前的41.1％降至化疗后的21.4％ (P =0.025).Survivin或BCRP单独阴性表达的患者化疗的有效率均较阳性表达者高(均P＜0.05).HER-2 mRNA的单独表达状况与化疗疗效无关(P =0.144).Survivin、BCRP和HER-2 mRNA均为阴性表达的患者化疗疗效高于其他各组(P =0.003).在乳腺癌组织中,Survivin、BCRP和HER-2 mRNA的表达之间不存在相关关系(P＞0.05).结论 联合检测Survivin、BCRP和HER-2的表达可作为预测乳腺癌TE方案新辅助化疗敏感性的分子生物学指标.     

乳腺癌组织中IGF1R、ER表达与新辅助化疗疗效的关系

目的:探讨乳腺癌组织中胰岛素样生长因子受体1（insulin-like growth factor receptor 1,IGF1R）、雌激素受体（estrogen receptor,ER）蛋白的表达对患者新辅助化疗疗效的影响。方法:对我院接受新辅助化疗的114例乳腺癌患者（2015年1月至2015年12月）进行回顾性分析,所有患者于化疗前均接受免疫组织化学检测,根据新辅助化疗结果将患者分为完全缓解（pCR）组25例、未完全缓解（nCR）组89例,采用非条件Logistic回归模型探讨IGF1R、ER表达与新辅助化疗疗效的关系。结果:IGF1R阳性表达患者的pCR率为19.23%,阴性表达患者的pCR率为24.19%,差异无统计学意义（P>0.05）;ER阳性表达患者的pCR率为14.08%,低于阴性表达患者的34.88%,差异具有统计学意义（P<0.05）;发生淋巴结转移、ER阳性表达患者会降低新辅助化疗的疗效（P<0.05）,分化程度越高,患者的新辅助化疗疗效越好。结论:ER阳性表达患者新辅助化疗疗效较差,IGF1R表达程度与患者新辅助化疗疗效无关。     

系统免疫炎症指数对激素受体阴性乳腺癌新辅助化疗后病理完全缓解的预测价值

目的:探讨化疗前系统免疫炎症指数(systemic immune-inflammation index, SII)与激素受体阴性乳腺癌新辅助化疗(neoadjuvant chemotherapy, NAC)后病理完全缓解(pathological complete response, pCR)的关系。方法:回顾性分析2013年1月-2017年1月在我院接受新辅助化疗并行手术的278例女性乳腺癌临床病理资料,组间分析通过Pearson’sχ²进行评估。使用Logistic回归模型进行单因素和多因素分析。结果:本研究共91例(32.7%)患者接受新辅助化疗后获得pCR,其中低SII组55例,高SII组36例,SII与pCR相关(P=0.015)。单因素分析显示：T₁+T₂组(pCR率37.10%)较T₃+T₄组(pCR率15.79%)更易获得pCR(P=0.003);低SII组(pCR率39.57%)较高SII组(pCR率25.90%)更易获得pCR(P=0.016);将单因素分析...     

Ki-67表达水平检测在乳腺癌新辅助化疗疗效评估中的价值

目的:回顾性分析88例乳腺癌新辅助化疗前、后Ki-67在肿瘤组织的表达情况,探讨Ki-67表达与新辅助化疗疗效的关系,评价其在乳腺癌新辅助化疗中的预测作用.方法:选取2015年9月至2016年9月河北医科大学第四医院乳腺中心收治的88例Ⅱ-Ⅲ期乳腺癌患者,检测新辅助化疗前空芯针穿刺肿瘤组织及术后标本中Ki-67的表达,分析其与新辅助化疗疗效及临床相关病理因素的关系.结果:新辅助化疗的临床总有效率为59.09%(52/88),Ki-67高表达组对化疗敏感,化疗效果明显优于Ki-67低表达组(P<0.05);新辅助化疗可明显降低Ki-67的高表达率(P<0.01);新辅助化疗后Ki-67表达下降组化疗有效率显著高于其他组(P<0.05).结论:Ki-67在乳腺肿瘤组织中的表达可作为新辅助化疗疗效临床评价指标之一,预测新辅助化疗的疗效,为个体化治疗提供依据.     

乳腺癌分子分型与新辅助化疗疗效关联性分析

目的乳腺癌在分子水平上特异性明显,新辅助化疗在其治疗上扮演的角色越来越重要。本研究旨在探讨乳腺癌分子分型与新辅助化疗疗效的相关性。方法回顾性分析2011-01-01-2015-12-31新疆医科大学附属肿瘤医院382例初治行新辅助化疗的乳腺癌患者的临床和病理资料,用免疫组化方法检测ER、PR、HER2和Ki-67的表达情况,判定分子分型,分析乳腺癌分子分型与新辅助化疗疗效的相关性。结果 Luminal型、HER2过表达型及三阴性型乳腺癌与临床疗效评价(χ^2=19.608,P<0.001)及病理疗效评价(χ^2=60.470,P<0.001)差异均有统计学意义的关联。三阴性型较HER2过表达型有更好组织学显著反应(χ^2=30.673,P<0.001),HER2过表达型较Luminal B型有更好的组织学显著反应,χ^2=25.480,P<0.001。临床疗效评价与病理疗效评价一致性欠佳(Kappa值≤0.40)。结论乳腺癌分子分型与新辅助化疗疗效有统计学意义的关联,HER2过表达型和三阴性型对新辅助化疗更敏感;临床疗效评价与病理疗效评价一致性欠佳。